package Sl.sl08;

import org.apache.log4j.Logger;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;

public class IntermediaryInvocationHandler implements InvocationHandler {
    private Logger logger=Logger.getLogger(IntermediaryInvocationHandler.class);
    /**
     * 被代理的目标对象
     */
    private Object target;

    public void setTarget(Object target){
        this.target=target;
    }
    /**
     *为被代理的接口方法定义的代理业务规则
     */
    @Override
    public Object invoke(Object proxy, Method method,Object[] args)throws Throwable {
        before();
        Object feedBack= method.invoke(target,args); //反射执行目标对象的实际业务
        after();
        return "看房记录：买家反馈“"+feedBack+"”";
    }
    public void before(){
        logger.debug("前期准备。");
        logger.debug("查找房源。");
        logger.debug("和卖家沟通时间。");
    }

    public void after(){
        logger.debug("后期跟踪。");
        logger.debug("和卖家沟通意见。");
    }
}
